#include<bits/stdc++.h>
using namespace std;
int n,a[100002],x,maxn,ansn;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        scanf("%d",&x);
        a[x]++;
        maxn=max(x,maxn);
    }
    for(int i=1;i<=maxn;i++){
        if(a[i]!=0){
            ansn=max(a[i],ansn);
        }
    }
    printf("%d",ansn);
    return 0;
}
